Search site	Date of search: from inception to	Type of Search	Keywords used	Results	Relevant RCTs from results
WHO ICTRP (www.who.int/ictrp/search/en/)	22 August 2018	Basic	Ergonomic	91	3
	22 August 2018	Advanced	Dentist (in "Title") AND musculoskeletal (in "Condition")	3	3
	22 August 2018	Advanced	Dentist (in "Title") AND ergonomic (in "Intervention")	2	2
ClincialTrials.gov (ClinicalTrials.gov)	22 August 2018	Basic	Ergonomic	112	0
	22 August 2018	Advanced	Musculoskeletal disease or condition (in "Condition") AND Ergonomic (in " Intervention / Treatment") AND Dentist (in "Title acronym / Titles")	0	0
	22 August 2018	Advanced	Ergonomic (in " Intervention / Treatment") AND Dentist (in "Title acronym / Titles")	0	0